Samuel laweence madden



UNITED STATES PATENT OFFICE.

SAMUEL LAWRENCE MADDEN, OF LOUISVILLE, KENTUCKY, ASSIGNOR OF ONE-HALF TO JOHN H. SUMSER, OF SAME PLACE.

HQRSESHOE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 392,279, dated November 6, 1888.

Application filed March 17, 1888. Serial No. 267,533. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL LAWRENCE MADDEN, a citizen of the United States, residing at Louisville, in the county-of Jefferson and State of Kentucky, have invented a new and useful Improvement in Horseshoe Attachments, of which the following is a speeili cation.

The invention relates to improvements in horseshoe attachments, being a secondary shoe so constructed as to be quickly and readily attached to the shoe nailed to the foot, and adapted to prevent the feet of a horse or mule slipping on ice or packed snow in cold weather; and it consists in the construction and novel combination of parts hereinafter described, illustrated in the accompanying drawings, and pointed out in the appended claims.

In the drawings, Figure 1 is a side view of the device attached to thefoot of a horse. Fig. 2 is a rear view of the same. Fig. 3 is a plan view of the device detached. Fig. 4 is a reverse plan of the same.

Referring to the drawings by letter, A designates the hoof of a horse, having the shoe B, of ordinary construction, nailed thereto, the said shoe having the central front calk, a, the rear calks, a a, and the upwardly-standing lug or clip a above the front calk.

C is the secondary shoe, having the same contour as the fixed shoe and of proper size to fit thereto. The secondary shoe is provided in front with the central upstanding hook, c, that engages over the edge of the lug a on the fixed shoe, the side lugs, c 0, near the front and at equal distances on each side of said hook, and the rear vertical uprights, 0? c, the said lugs and uprights bearing against the adjacent edges of the fixed shoe and preventing the sec ondary shoe from slipping laterally. The secondary shoe is closed at the rear by the transverse bar 0 which prevents it from spreading.

D is a transverse hollow calk depending from the lower surface of the secondary shoe,

into which the calk a is inserted. The calk D has its sides converging downward to form the edge d, which holds upon ice or packed snow.

E E are hollow ealks into which the calks a a are inserted. The said calks are provided book a is first engaged over the lug a same.

with the holding edges 6 e, which are not aligned, but incline inward and forward in order to prevent the calks D and E from slipping laterally.

F is a bolt passing through suitable openings in the uprights c andengaging a nut, f, on the outer side of the adjacent upright. This nut is preferably made octagonal in order to incur less danger of being accidentally disengaged bystriking its corners against obstacles in the road.

To secure the secondary shoe in place, the The secondary shoe is then turned up to the fixed shoe, and the bolt F, which bears on the fixed shoe in front of the rear calks, is passed through the openings in the uprights and engaged to the nut f.

It is evident that the device can be quickly and readily attached and detached, and that when the horse is stabled the device should be detached to prevent the animal from cutting himself, and, further, to prevent wearing the calks of the secondary shoe dull too rapidly. The use of the device will prevent the keeping idle during winter of a horse that is not furnished with shoes having pointed or sharp-edged calks.

The bar 0 which closes the rear of the shoe, also rests below the bolt F and protects the Without this bar some foreign substance-such as stone-might press up between the ends of the secondary shoe and bend the bolt, so that it could not be removed. This would render the shoe valueless.

Having described my invention, I claim- 1. The herein-described secondary horseshoe, consisting of the proper body of the shoe, the depending sharp-edged frontand rear calks, D and E, respectively, the hook e, to engage the lug a of the fixed shoe, and the perforated uprights 0 in combination with the bolt F, passing through the perforations in said uprights and bearing on the fixed shoe, andthe nut f, engaging said bolt, substantially as specified.

2. The herein-described secondary horseshoe, provided with the depending sharpedged ealks D E on its lower surface, and haviug on its upper surface the hook c, the pen forated uprights e", and the side lugs, c, to prevent it from slipping on the fixed shoe, in combination with the bolt 1* and nut j; substantially as specified.

3; The combination of the fixed shoe 13, having the front enlk, a, the rear calks, a, and the upstanding 111g a", with the secondary shoe 0, having the sharpedged calks D E, the hook 0, the side lugs, c, and the perforated uprights c, the bolt F, and the nut f, substantially as specified.

11-. The combination ofthe fixed shoe having celks of ordinary construction and the up standing lug the bolt F, the nutf, and the 15 secondary shoe 0, having the uprights c", the hook c, and bar 0", closing its rear end and protecting the bolt, substantially as specified.

In testimony that I claim the foregoing as I my own I have hereto ailixerl my signature in 20 M. K. ALLEN, .llxs. E. BL-wunnnscm. 

